[PATCH 08/13] ASoC: generic-dmaengine-pcm: Clear slave_config memory
From: Lee Jones
Date: Wed Nov 06 2013 - 05:18:33 EST
We currently assume that the DMA Slave Config will be fully populated
by the platform, however some DMA Engines make decisions based on zero
(default) flags such as DMA_SLAVE_BUSWIDTH_UNDEFINED and as this is a
static declaration we need to memset it to clear the data area.
Cc: alsa-devel@xxxxxxxxxxxxxxxx
Cc: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
sound/soc/soc-generic-dmaengine-pcm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index ee07903..6ad4c7a 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -90,6 +90,8 @@ static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream,
struct dma_slave_config slave_config;
int ret;
+ memset(&slave_config, 0, sizeof(slave_config));
+
if (!pcm->config)
prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
else
--
1.8.1.2
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